[data-landing-root]{--v2-bg:#0a0a0a;--v2-bg-elevated:#16181c;--v2-bg-input:rgba(255,255,255,0.06);--v2-surface-node:rgba(255,255,255,0.07);--v2-surface-node-gradient:linear-gradient(160deg,rgba(255,255,255,0.13),rgba(255,255,255,0.07) 45%,rgba(255,255,255,0.04));--v2-surface-panel:rgba(18,18,22,0.95);--v2-surface-float:rgba(18,18,26,0.98);--v2-surface-menu:rgba(20,21,26,0.97);--v2-text-primary:rgba(255,255,255,0.90);--v2-text-secondary:rgba(255,255,255,0.60);--v2-text-muted:rgba(255,255,255,0.50);--v2-text-subtle:rgba(255,255,255,0.35);--v2-text-placeholder:rgba(255,255,255,0.28);--v2-stroke-default:rgba(255,255,255,0.08);--v2-stroke-strong:rgba(255,255,255,0.12);--v2-stroke-weak:rgba(255,255,255,0.05);--v2-stroke-node:rgba(255,255,255,0.18);--v2-accent:#FF0044;--v2-accent-bright:#ff2060;--v2-accent-text:#ffb3c6;--v2-accent-15:rgba(255,0,68,0.15);--v2-accent-20:rgba(255,0,68,0.20);--v2-accent-30:rgba(255,0,68,0.30);--v2-accent-45:rgba(255,0,68,0.45);--v2-brand-gradient:linear-gradient(135deg,#cc0033,#FF0044);--v2-shadow-fab:0 4px 20px rgba(255,0,68,0.50);--v2-shadow-fab-hover:0 6px 28px rgba(255,0,68,0.70);--v2-accent-rgb:255,0,68;--v2-blue:#3b82f6;--v2-green:#10b981;--v2-amber:#f59e0b;--v2-red:#ef4444;--v2-hover-surface:rgba(255,255,255,0.08);--v2-hover-surface-sm:rgba(255,255,255,0.05);--v2-selected-surface:rgba(255,255,255,0.12);--v2-border-hover:rgba(255,255,255,0.12);--v2-shadow-node:0 4px 16px rgba(0,0,0,0.30);--v2-shadow-surface:0 8px 32px rgba(0,0,0,0.40);--v2-shadow-menu:0 24px 60px rgba(0,0,0,0.70),0 0 0 0.5px rgba(255,255,255,0.05) inset;--v2-node-shadow:inset 0 1px 0 rgba(255,255,255,0.28),inset 0 -1px 0 rgba(0,0,0,0.15),0 8px 32px rgba(0,0,0,0.5),0 2px 8px rgba(0,0,0,0.3);--font-display:var(--font-geist),"PingFang SC",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;--font-body:var(--font-geist),"PingFang SC",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;--font-mono:var(--font-jetbrains-mono),ui-monospace,SFMono-Regular,Menlo,monospace;--ease-bounce:cubic-bezier(0.34,1.56,0.64,1);--ease-smooth:cubic-bezier(0.4,0,0.2,1);background:var(--v2-bg);color:var(--v2-text-primary);font-family:var(--font-body);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}[data-landing-root][data-accent=blue]{--v2-accent:#3b82f6;--v2-accent-bright:#60a5fa;--v2-accent-text:#bfdbfe;--v2-accent-15:rgba(59,130,246,0.15);--v2-accent-20:rgba(59,130,246,0.20);--v2-accent-30:rgba(59,130,246,0.30);--v2-accent-45:rgba(59,130,246,0.45);--v2-brand-gradient:linear-gradient(135deg,#1d4ed8,#3b82f6);--v2-shadow-fab:0 4px 20px rgba(59,130,246,0.50);--v2-shadow-fab-hover:0 6px 28px rgba(59,130,246,0.70);--v2-accent-rgb:59,130,246}[data-landing-root][data-accent=purple]{--v2-accent:#a855f7;--v2-accent-bright:#c084fc;--v2-accent-text:#e9d5ff;--v2-accent-15:rgba(168,85,247,0.15);--v2-accent-20:rgba(168,85,247,0.20);--v2-accent-30:rgba(168,85,247,0.30);--v2-accent-45:rgba(168,85,247,0.45);--v2-brand-gradient:linear-gradient(135deg,#7e22ce,#a855f7);--v2-shadow-fab:0 4px 20px rgba(168,85,247,0.50);--v2-shadow-fab-hover:0 6px 28px rgba(168,85,247,0.70);--v2-accent-rgb:168,85,247}[data-landing-root] a{color:inherit;text-decoration:none}[data-landing-root] button{font-family:inherit}[data-landing-root] ::selection{background:var(--v2-accent-30);color:#fff}[data-landing-root] .container{max-width:1680px;margin:0 auto;padding:0 56px}@media (max-width:1280px){[data-landing-root] .container{padding:0 40px}}@media (max-width:768px){[data-landing-root] .container{padding:0 20px}}[data-landing-root] .section{padding:120px 0;position:relative}@media (max-width:768px){[data-landing-root] .section{padding:80px 0}}[data-landing-root] .eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;color:var(--v2-accent-text);letter-spacing:.18em;text-transform:uppercase;padding:6px 12px;background:var(--v2-accent-15);border:1px solid var(--v2-accent-30);border-radius:999px}[data-landing-root] .eyebrow .dot{width:6px;height:6px;border-radius:999px;background:var(--v2-accent);box-shadow:0 0 8px var(--v2-accent)}[data-landing-root] .h1{font-size:clamp(48px,7vw,96px);line-height:.98;letter-spacing:-.03em}[data-landing-root] .h1,[data-landing-root] .h2{font-family:var(--font-display);font-weight:700;margin:0}[data-landing-root] .h2{font-size:clamp(36px,4.5vw,64px);line-height:1.05;letter-spacing:-.025em}[data-landing-root] .h3{font-family:var(--font-display);font-size:24px;font-weight:600;line-height:1.2;letter-spacing:-.01em;margin:0}[data-landing-root] .lead{font-size:18px;color:var(--v2-text-secondary);max-width:760px;line-height:1.6}[data-landing-root] .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;font-size:14px;font-weight:500;border-radius:999px;border:none;cursor:pointer;transition:all .15s var(--ease-smooth);text-decoration:none;white-space:nowrap}[data-landing-root] .btn-primary{background:var(--v2-brand-gradient);color:#fff;box-shadow:var(--v2-shadow-fab)}[data-landing-root] .btn-primary:hover{box-shadow:var(--v2-shadow-fab-hover);transform:translateY(-1px)}[data-landing-root] .btn-ghost{background:var(--v2-bg-input);color:var(--v2-text-primary);border:1px solid var(--v2-stroke-default);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}[data-landing-root] .btn-ghost:hover{background:var(--v2-hover-surface);border-color:var(--v2-stroke-strong)}[data-landing-root] .btn-secondary{background:var(--v2-bg-input);color:var(--v2-text-primary);border:1px solid var(--v2-stroke-default)}[data-landing-root] .btn-secondary:hover{background:var(--v2-hover-surface);border-color:var(--v2-stroke-strong)}[data-landing-root] .glass{background:var(--v2-surface-node-gradient);border:1px solid var(--v2-stroke-node);border-radius:16px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:var(--v2-node-shadow)}[data-landing-root] .glass-flat{background:var(--v2-surface-panel);border:1px solid var(--v2-stroke-default);border-radius:16px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}[data-landing-root] .stripe{background:repeating-linear-gradient(135deg,rgba(255,255,255,.06),rgba(255,255,255,.06) 1px,transparent 0,transparent 12px),rgba(255,255,255,.03);border:1px dashed rgba(255,255,255,.12);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--v2-text-subtle);font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.1em}[data-landing-root] .course-tab{background:rgba(255,255,255,.04);border:1px solid var(--v2-stroke-default);border-radius:999px;padding:7px 14px;font-size:12px;color:var(--v2-text-secondary);font-family:inherit;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:all .15s ease;white-space:nowrap}[data-landing-root] .course-tab:hover{background:var(--v2-hover-surface);border-color:var(--v2-stroke-strong);color:var(--v2-text-primary)}[data-landing-root] .course-tab[data-active=true]{background:var(--v2-accent-20);border-color:var(--v2-accent);color:var(--v2-text-primary);box-shadow:0 0 0 1px var(--v2-accent-30),0 0 16px rgba(var(--v2-accent-rgb),.25)}[data-landing-root] .course-tab .tab-flame{font-size:11px;filter:saturate(1.2)}[data-landing-root] .course-tab .tab-vip{font-size:9px;font-family:var(--font-mono);padding:1px 4px;border-radius:3px;background:var(--v2-accent-30);color:var(--v2-accent-text);font-weight:700;letter-spacing:.04em}[data-landing-root] .course-cat-card{display:flex;align-items:center;gap:12px;padding:14px 16px;background:rgba(255,255,255,.03);border:1px solid var(--v2-stroke-default);border-radius:14px;cursor:pointer;text-align:left;font-family:inherit;transition:all .2s var(--ease-bounce);position:relative;overflow:hidden}[data-landing-root] .course-cat-card:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 100% 0,var(--cat-c,var(--v2-accent)),transparent 60%);opacity:0;transition:opacity .2s ease;pointer-events:none}[data-landing-root] .course-cat-card:hover:before{opacity:.08}[data-landing-root] .course-cat-card:hover{transform:translateY(-2px);border-color:var(--v2-stroke-strong)}[data-landing-root] .course-cat-card[data-active=true]{border-color:var(--cat-c,var(--v2-accent));background:rgba(255,255,255,.05)}[data-landing-root] .course-cat-card[data-active=true]:before{opacity:.12}[data-landing-root] .course-cat-card .cat-icon{width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}[data-landing-root] .course-cat-card .cat-arrow{margin-left:auto;font-family:var(--font-mono);color:var(--v2-text-subtle);font-size:14px;transition:transform .2s var(--ease-bounce),color .2s ease}[data-landing-root] .course-cat-card:hover .cat-arrow{color:var(--cat-c,var(--v2-accent));transform:translateX(4px)}@keyframes landing-spin{to{transform:rotate(1turn)}}@keyframes landing-node-appear{0%{opacity:0;transform:translateY(8px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes landing-pulse{0%,to{opacity:.4}50%{opacity:.9}}@keyframes landing-scroll-hint{0%{transform:translateY(-100%);opacity:0}20%{opacity:1}to{transform:translateY(200%);opacity:0}}@keyframes landing-float{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}@keyframes landing-shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}[data-landing-root] .shimmer-text{background:linear-gradient(90deg,var(--v2-text-primary) 0,var(--v2-text-primary) 40%,var(--v2-accent) 50%,var(--v2-text-primary) 60%,var(--v2-text-primary) 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:landing-shimmer 4s linear infinite}[data-landing-root] .fade-in{animation:landing-node-appear .4s var(--ease-bounce) both}